DOM-wait is a vanilla JavaScript powered Progress Loader Management to manage complex waiting experiences on web applications. I've needed this and after some research I came up with this (jQuery needed): First, right after the tag add this: Then add the style class for the div and image to your CSS: Then, add this javascript to your page (preferably at the end of your page, before your closing tag, of course): Finally, adjust the position of the loading image and the background-colour of the loading div with the style class. Made by May 10, 2016. download demo and code. Executes after DOM is loaded (before img and css): Note: Synchronous JavaScript pauses parsing of the DOM. It's not elegant but it's a simple hack that renders well. How do I copy to the clipboard in JavaScript? If that's the case, add setTimeout before your function to delay is a moment. What event does JQuery $function() fire on? How to create a loader in Javascript waiting for a function to end? have no effect. I just discovered in testing that the code as written results in handlers being fired in an undefined order when attached with attachEvent(). pageload is a small and dependency-free loading indicator library to create a Youtube-like loading bar on the top of the webpage. : to use this code you need to import 2 scripts. Is it possible to send 2 or more o/p signal at the same time? https://developer.mozilla.org/en-US/docs/Web/Events/load, https://developer.mozilla.org/en-US/docs/Web/Events. How do you get a timestamp in JavaScript? What did Lego set *instruction manuals* look like in the past? Then have a div that's set to display:block with "Loading" in it, and set it to display:none in the same event handler as before. How can I make a view that seems like orthographic, but not exactly? How to show Page Loading div until the page has finished loading? CSS loader code from https://projects.lukehaas.me/css-loaders. What is the difference between and document.onload=function ... ? Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. Stack Overflow for Teams is a private, secure spot for you and I have a page with toggles showing different contents and when toggling between contents it takes a while to load. – DevWL Sep 25 '17 at 22:29. Hello highlight.js! Implementing a loading spinning wheel in javascript, using fadeOut() or hide() to fade/hide Bootstrap 4 spinner/loader when browser window is completely loaded, show a loading image while a table is being built in a part of the html, Using 'overflow: hidden' (CSS) and jQuery to prevent user from scrolling though a loading page, Enable “open in new tab/window” in right click, Show Progress Bar And disable all contents of the page until page loads. This Ajax code will work effectively and fast: This for me is only working when the page first loads, i.e. (Cross browser.. IE6+ FF2+ etc), It's actually window.onload that's more standard, not document.onload. How do I modify the URL without reloading the page? external file deferredfunctions.js. To hide my websites loading overlay, I use the following: As Daniel says, you could use document.onload. That means when we click this print button (which will take a long time to give the report) it will show our cover screen with GIF which gives result and once the page is ready above windows on load function will fire and which hide the cover screen once the screen is fully loaded. 'no image' icon while outputting AJAX-delivered content, Django - show loading message during long processing. Your code in the script is than enclosed by aFunction() { }. But window.onload method has various dependencies. If order-of-handler-execution is important you may want to leave out the window.attachEvent branch.